The largest component of the NPI Media Group was Tempus Publishing, founded by Alan Sutton in 1993.

Tempus Publishing's early years were spent producing local history titles, principally books of old photographs depicting towns and villages throughout the UK.

Tempus Publishing ceased operations in 2007 at the same time as the formation of The History Press and thereafter became an imprint.

Based in Dublin, it publishes a wide range of books including history, current affairs, biography, photography and historical fiction.

Until 2019 The History Press was based in The Mill, Brimscombe Port, near Stroud in Gloucestershire, and then moved to central Cheltenham.